If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Follow us on Facebook Follow us on Twitter
Page 2 of 2 FirstFirst 12
Results 11 to 13 of 13

Thread: 496 upgrades

  1. #11
    Registered Whipple Charged's Avatar
    My Boats:
    Engine, speed, powerboats, Outerlimits SV43 with Whipple 1375SCI's
    Join Date
    Oct 2000
    Fresno, CA, 93722, USA

    Your still going to run into a problem of not getting the "Mercury Marine" engines to run properly with those type of mods. The MEFI4 is not a viable option for all, many have smart craft gauges, etc. not to mention most don't want to spend the extra cash.

    If you want to send me a set, were testing 3 packages right now with the Mercury 496. 2 are NA and one is supercharged. If you have one "test" set, please contact me and we will run them and develop a cal.


  2. #12
    Fuelish Pleasures
    Sounds like a great idea Ray.

  3. #13
    Join Date
    Jan 2004
    San Diego, California
    Thanks for the reply. Our first two pairs are on our two dyno mule motors as we speak for dyno evaluations, but as soon as we get ahead one set I will get a pair off to you for your dyno and calibration. I am pretty sure the Delphi unit can be recalibrated for the addtional fuel and reduced spark timing. Tom at Flagship has been reprograming and Arizona speed and marine dynoed their reworked 515 inch 8.1 motor already at 600HP plus. Hope you can come up with a program change. These new heads and our new cam profiles under your charger should make for some fast 496's Raylar

Page 2 of 2 FirstFirst 12

Similar Threads

  1. 496 EFI upgrades????
    By RIVER_CAT in forum General Q & A
    Replies: 13
    Last Post: 09-06-2007, 12:35 PM
  2. 496 hp upgrades- who offers them?
    By Buddy OO in forum General Boating Discussion
    Replies: 39
    Last Post: 12-15-2006, 03:35 AM
  3. tyler crockett's 496 engine upgrades ?
    By 26sonic in forum General Boating Discussion
    Replies: 19
    Last Post: 10-17-2006, 02:57 AM
  4. 496 Winter upgrades
    By muffman in forum General Boating Discussion
    Replies: 15
    Last Post: 12-01-2005, 02:29 PM
  5. 496 HO - bulletproof upgrades
    By Goofy1103 in forum General Q & A
    Replies: 1
    Last Post: 11-15-2004, 03:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
All times are GMT -5. The time now is 09:40 PM.
Powered by vBulletin® Version 4.2.0
Copyright © 2016 vBulletin Solutions, Inc. All rights reserved.
Search Engine Optimization by vBSEO 3.6.1
Original Poster In Postbit provided by Original Poster In Postbit v1.0.0 (Free) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2011 OffShoreOnly. All rights reserved.